Loeffler's bacill'us

(lef'ler) [Fried rich August Johannes Loeffler, German bacteriologist, 1852- 1915.] Bacillus diphthericB. L.'s blood-serum, a culture medium consisting of 3 parts beef blood-serum and sheep's blood-serum and i part of beef bouillon containing i per cent, peptone, i per cent, glucose, and per cent, sodium chloride. L.'s caus'tic solu'tion, an aqueous, solution of tannin and sulphate of iron with the addition of an alcoholic fuchsln solution. L.'s meth'ylene blue, made by adding 30 c.c. of concentrated methylene blue to 100 c.c. of a o 01 per cent, solution of pota ium hydrate. L.*s stain, for flagella, the specimen is treated with a mixture of ferrous sulphate, tannic acid, and alcoholic fuchsln, then stained with aniline water fuchsln or gentian violet made alkaline with o I per cent, sodium hydrate solution.